US9695662B2 - Method and system for retaining a lock ring on a casing hanger - Google Patents

Method and system for retaining a lock ring on a casing hanger Download PDF

Info

Publication number
US9695662B2
US9695662B2 US14/522,010 US201414522010A US9695662B2 US 9695662 B2 US9695662 B2 US 9695662B2 US 201414522010 A US201414522010 A US 201414522010A US 9695662 B2 US9695662 B2 US 9695662B2
Authority
US
United States
Prior art keywords
wellhead
lock ring
hanger
radial
assembly
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active, expires
Application number
US14/522,010
Other languages
English (en)
Other versions
US20150114669A1 (en
Inventor
Mayur MANSUKH
Aniruddha D. Gadre
Joseph William Pallini
David Lawrence Ford
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vetco Gray LLC
Original Assignee
Vetco Gray LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vetco Gray LLC filed Critical Vetco Gray LLC
Priority to US14/522,010 priority Critical patent/US9695662B2/en
Assigned to VETCO GRAY INC. reassignment VETCO GRAY INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FORD, DAVID LAWRENCE, GADRE, ANIRUDDHA D., Mansukh, Mayur, PALLINI, JOSEPH WILLIAM
Priority to PCT/US2014/062553 priority patent/WO2015065960A1/fr
Publication of US20150114669A1 publication Critical patent/US20150114669A1/en
Application granted granted Critical
Publication of US9695662B2 publication Critical patent/US9695662B2/en
Assigned to Vetco Gray, LLC reassignment Vetco Gray, LLC CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: VETCO GRAY INC.
Active legal-status Critical Current
Adjusted expiration legal-status Critical

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads
    • E21B33/0415—Casing heads; Suspending casings or tubings in well heads rotating or floating support for tubing or casing hanger
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/02—Rod or cable suspensions
    • E21B19/06—Elevators, i.e. rod- or tube-gripping devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/02—Surface sealing or packing
    • E21B33/03—Well heads; Setting-up thereof
    • E21B33/04—Casing heads; Suspending casings or tubings in well heads
    • E21B33/0422—Casing heads; Suspending casings or tubings in well heads a suspended tubing or casing being gripped by a slip or an internally serrated member

Definitions

  • the present disclosure relates in general to a system for coupling annular member to hanger used in a wellhead assembly.
  • Wellheads used in the production of hydrocarbons extracted from subterranean formations typically include a wellhead assembly attached at the upper end of a wellbore formed into a hydrocarbon producing formation.
  • Support hangers for suspending production tubing and casing into the wellbore are generally included within the wellhead assemblies.
  • the casing lines the wellbore and isolates the wellbore from the surrounding formation.
  • the tubing which typically lies concentric within the casing, provides a conduit therein for producing the hydrocarbons entrained within the formation.
  • Wellhead assemblies also typically include a wellhead housing and a production tree atop the wellhead housing.
  • Wellhead housings are often adjacent where the casing and tubing enter the wellbore.
  • the production tree is commonly used to control and distribute the fluids produced from the wellbore and selectively provide fluid communication or access to the tubing, casing, and/or annuluses between the tubing and casing.
  • Valves assemblies are typically provided within wellhead production tees for controlling fluid flow across a wellhead, such as production flow from the borehole or circulating fluid flow in and out of a wellhead.
  • Lockdown rings typically restrain each casing hanger within the wellhead housing to prevent relative axial movement between the casing hanger and wellhead housing.
  • the passages typically are bored axially through the casing hangers and are in the form of slots along the inner surface of the wellhead housing.
  • a wellhead assembly is described herein that is made of a wellhead hanger, a wellhead housing, a lock ring through which an axial lock down force is selectively transmitted between the wellhead hanger and wellhead housing, a slot through the lock ring that registers with a bore radially formed into an outer surface of the wellhead hanger, a pin that inserts into the bore and into the slot, so that the pin is in a path that interferes with axial movement of the lock ring, and a radial stop mounted on the wellhead hanger and in interfering contact with a radial path of the lock ring.
  • a portion of the slot projects fully through a radial thickness of the lock ring to define an aperture, and another portion of the slot extends from the aperture along a portion of the circumference of an inner surface of the lock ring and partially through the radial thickness of the lock ring.
  • the radial stop can be made of fastener assemblies, wherein each fastener assembly includes a threaded fastener that anchors into the wellhead hanger, and a washer that projects radially outward from the threaded fastener.
  • a channel can be formed on an outer radial surface of the lower end of the lock ring, and wherein the washer projects into the channel. Further in this example, the channel extends along a portion of the circumference of the lock ring.
  • the lock ring rests on an upper facing surface of a shoulder, wherein the shoulder projects radially outward from the wellhead hanger, and wherein an outer radial portion of the upper facing surface projects radially upward to define a radial stop.
  • the lock ring can be freely and selectively moveable with respect to the pins along a path radial to an axis of the wellhead hanger.
  • the lock ring selectively projects into a profile formed on an inner surface of the wellhead housing, a wherein the lock ring rests on an upper surface of a shoulder on the wellhead hanger, and wherein the axial lock down force transmitted between the wellhead hanger and wellhead housing passes through the shoulder and the profile.
  • a wellhead assembly which includes a wellhead hanger, a wellhead housing circumscribing the wellhead hanger, a lock ring between the wellhead hanger and wellhead housing and for transmitting a lockdown force between the wellhead hanger and wellhead housing, pins anchored in the wellhead hanger that are in interfering contact with axial movement of the lock ring, and radial stops on the wellhead hanger that limit radial movement of the lock ring.
  • Slots can be provided in the lock ring that include apertures, and wherein the pins radially project through the apertures, in this example a portion of each slot extends past each of the apertures and along a portion of the circumference of the lock ring and partially through the thickness of the lock ring.
  • the radial stops incorporate threaded fasteners that project radially into the wellhead hanger, and have a portion projecting into a channel that is formed on a lower end of the lock ring and along an outer circumference of the lock ring.
  • the radial stops can include a shoulder on the wellhead hanger defined where the radius of the wellhead hanger projects outward, and which provides a surface on which the lock ring is disposed, and a wall on an outer end of the shoulder that projects axially upward from the surface.
  • Also disclosed herein is a method of forming a wellhead assembly that includes providing an annular lock ring, mounting the lock ring onto a wellhead hanger, landing the wellbore hanger into a wellhead housing, limiting movement of the lock ring radially away from the wellhead hanger while landing the wellbore hanger into the wellhead housing, and resisting axial movement of the lock ring with respect to the wellhead hanger while landing the wellbore hanger into the wellhead housing.
  • the method can further include urging the lock ring radially outward and into engagement with the wellhead housing so that a lockdown force is transmitted from the wellhead housing to the wellhead hanger through the lock ring.
  • Axial movement of the lock ring can be limited by pins that are mounted in the wellhead hanger, and the radial movement of the lock ring can be limited by radial stops on the wellhead hanger that are disposed radially outward from an outer lateral surface of the wellhead hanger.
  • FIGS. 1A and 1B are side sectional views of an example of a retention system for a wellbore lock ring.
  • FIGS. 2A and 2B are side views respective of portions of the inner and outer surface of the lock ring of FIGS. 1A and 1B .
  • FIGS. 3A and 3B are side sectional views of an example of a radial retention system for an example of a wellbore lock ring.
  • FIG. 4 is an axial sectional view of the lock ring of FIGS. 1A and 1B .
  • FIG. 5 is a side view of an example of the radial retention system of FIGS. 3A and 3B .
  • FIG. 6 is a perspective and partial sectional view of a portion of an example of a wellhead assembly having the retention system of FIGS. 1A and 1B .
  • FIG. 7 is a side sectional view of an example of a wellbore lock ring with an alternative example of a retention system.
  • FIG. 1A Shown in side sectional view in FIG. 1A is an example of a portion of a wellhead assembly 10 used in conjunction with producing wellbore fluids from a wellbore (not shown).
  • the wellhead assembly 10 includes a wellhead hanger 12 shown landed within a wellhead housing 14 .
  • a tubular string such as a string of casing or tubing (not shown) has an upper end supported by the wellhead hanger 12 , and depends down into the wellbore.
  • An example of a lock ring assembly 16 is shown disposed in an annular space between the wellhead hanger 12 and wellhead housing 14 .
  • 1A includes an annular lock ring 18 and a pin 20 for coupling the lock ring 18 to the wellhead hanger 12 .
  • the pin 20 anchors to the wellhead hanger 12 by a threaded recess 22 formed radially into an outer surface of the wellhead hanger 12 .
  • the outer radial portion of the pin 20 extends into a slot 24 formed in the lock ring 18 and into interfering contact with axial movement of the lock ring 18 with respect to the wellhead hanger 12 .
  • the wellhead hanger 12 projects radially outward towards the wellhead housing 14 to form an upward facing surface which defines a shoulder 26 ; the lower end of the lock ring 18 is supported by the shoulder 26 .
  • FIG. 1B illustrates in side sectional view an example of the lock ring 18 moved radially outward and into engagement with a profile 28 formed on an inner radial surface of the wellhead housing 14 .
  • the profile 28 has a shape complementary to the outer radial surface of the lock ring 18 , so that an axial lock down force F LD can be transferred between the wellhead hanger 12 and wellhead housing 14 for axially coupling the wellhead hanger 12 to the wellhead housing 14 .
  • FIGS. 2A and 2B show perspective views respectively of portions of the inner and outer radial surfaces of the lock ring 18 .
  • a lateral section 29 of the slot 24 projects radially through only a portion of the thickness of the lock ring 18 and extends along a segment of the circumference of the lock ring 18 .
  • Adjacent the lateral section 29 is an aperture that projects radially through the entire thickness of the lock ring 18 .
  • the pin 20 can insert through the aperture 30 , or remain in the lateral section 29 thereby allowing limited rotational movement of the lock ring 18 but mostly limiting axial movement. The pins load against lateral section 29 .
  • the wellhead hanger 12 and lock ring 18 are shown in a side sectional view, and where the wellhead assembly 10 further includes a radial stop 32 for limiting radial movement of the lock ring 18 with respect to the wellhead hanger 12 .
  • the radial stop 32 of FIG. 3A includes a fastener assembly 33 that is made up of a threaded fastener 34 shown anchored into a threaded bore 35 that is formed radially inward from an outer surface of the wellhead hanger 12 .
  • the fastener 34 intersects an opening in a mid-portion of a disk like washer 36 and holds the washer 36 in place on the wellhead hanger 12 .
  • the washer 36 extends upward from fastener 34 and into a channel 38 shown formed into a lower end of the lock ring 18 and along the outer radial surface of the lock ring 18 .
  • a pocket 40 is shown formed on an outer radial surface of wellhead hanger 12 and which has an upper end that intersects with an outer radial portion of shoulder 26 .
  • a lower end of washer 36 is shown disposed within pocket 40 .
  • the presence of the radial stop 32 limits outward radial movement of the lock ring 18 , where the radial movement of the lock ring 18 is represented by arrow A R .
  • the washer 36 and channel 38 are strategically dimensioned so that the radial travel of lock ring 18 , as represented by arrow A R , is held within a range that allows lock ring 18 to move into engagement with the wellhead housing 12 , as shown in FIGS. 2B, 3B , but yet limits excessive outward radial movement of the lock ring 18 that might allow unwanted contact with other hardware and interfere with landing the wellhead hanger 12 within wellhead assembly 10 .
  • FIG. 4 is an axial partial sectional view of the lock ring 18 mounted onto wellhead hanger 12 , and which is taken along lines 4 - 4 of FIG. 3A .
  • multiple pins 20 are shown, wherein some of the pins are intersecting lateral sections 29 of the slots 24 , and wherein one of the pins 20 is shown projecting into an aperture 42 that extends part ways through the thickness of the lock ring 18 , and whose diameter results in a close fit between the pin. 20 and aperture 42 .
  • FIG. 5 is a perspective elevational view of a portion of the lock ring 18 mounted onto wellhead hanger 12 . Shown in FIG. 5 are ports 46 that provide a path for a cement return flow.
  • FIG. 6 is a partial sectional perspective view of an example of the wellhead assembly 10 , where a seal assembly 48 is included for sealing between the wellhead hanger 12 and wellhead housing 10 ( FIG. 1B ).
  • a nose ring 50 mounted coaxially to a lower end of the seal assembly 48 is a nose ring 50 , which is a ring like member and used for locking the lock ring 18 with the wellhead housing 10 . More specifically, applying an energizing force in a direction as represented by arrow F E , urges the nose ring 50 axially downward between the lock ring 18 and wellhead hanger 12 to bias the lock ring. 18 radially outward and into engaging contact with the wellhead housing 10 as illustrated in FIG. 1B .
  • FIG. 7 is a side sectional view of an alternate example of a wellhead assembly 10 A
  • a threaded fastener 52 couples the lock ring 18 A to the wellhead hanger 12 A and provides a counter force for limiting axial movement of the lock ring 18 A with respect to the wellhead hanger 12 A.
  • the fastener 52 has an end that engages a threaded bore 54 shown formed in an outer surface of the wellhead hanger 12 A, and which projects radially into the wellhead hanger 12 A.
  • the fastener 54 also extends into an opening 56 shown extending radially through the thickness of the lock ring 18 A, and which has a diameter slightly greater than a diameter of an enlarged head portion of the fastener 52 .
  • a parapet 58 is shown formed on an outer radial end of shoulder 26 A and which corresponds to a ledge 60 on a lower surface of the lock ring 18 A.
  • the combination of the parapet 58 and ledge 60 define an example of a radial stop 32 A. Accordingly, the fastener 32 , parapet 58 , and ledge 60 combine to limit radial and axial movement of the lock ring 18 A with respect to the wellhead hanger 12 A.
  • an advantage of limiting the axial and outward radial movement of the lock ring 18 , 18 A with respect to the wellhead hanger 12 , 12 A is that they can be lowered onto the wellhead assembly 10 , 10 A without the threat of the lock ring 18 , 18 A becoming inadvertently snagged on another piece of hardware on the way to the wellhead assembly 10 , 10 A.
  • strategic dimensioning of the components that limit the radial and axial movement of the lock ring 18 , 18 A still allow sufficient radial movement of the lock ring 18 , 18 A so that it can be locked with the wellhead housing 14 , 14 A.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
US14/522,010 2013-10-28 2014-10-23 Method and system for retaining a lock ring on a casing hanger Active 2035-08-19 US9695662B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/522,010 US9695662B2 (en) 2013-10-28 2014-10-23 Method and system for retaining a lock ring on a casing hanger
PCT/US2014/062553 WO2015065960A1 (fr) 2013-10-28 2014-10-28 Procédé et système destinés à retenir une bague de verrouillage sur une suspension de tubage

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361896401P 2013-10-28 2013-10-28
US201461987861P 2014-05-02 2014-05-02
US14/522,010 US9695662B2 (en) 2013-10-28 2014-10-23 Method and system for retaining a lock ring on a casing hanger

Publications (2)

Publication Number Publication Date
US20150114669A1 US20150114669A1 (en) 2015-04-30
US9695662B2 true US9695662B2 (en) 2017-07-04

Family

ID=52994119

Family Applications (1)

Application Number Title Priority Date Filing Date
US14/522,010 Active 2035-08-19 US9695662B2 (en) 2013-10-28 2014-10-23 Method and system for retaining a lock ring on a casing hanger

Country Status (2)

Country Link
US (1) US9695662B2 (fr)
WO (1) WO2015065960A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10494889B2 (en) * 2016-08-25 2019-12-03 Cameron International Corporation Lockdown system and method
US20230026935A1 (en) * 2019-12-12 2023-01-26 Dril-Quip, Inc. Rigidized Seal Assembly Using Automated Space-Out Mechanism

Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3437356A (en) * 1967-05-01 1969-04-08 Rector Well Equipment Co Inc Casing hanger and seal assembly
US3721292A (en) 1971-08-05 1973-03-20 Vetco Offshore Ind Inc Marine riser liner apparatus and methods of installing such apparatus
GB2120300A (en) 1982-05-03 1983-11-30 Dril Quip Inc Wellhead apparatus
US4488740A (en) 1982-02-19 1984-12-18 Smith International, Inc. Breech block hanger support
US4607865A (en) 1984-10-16 1986-08-26 Vetco Offshore Industries, Inc. Connector, ratcheting type
US5002131A (en) * 1990-01-18 1991-03-26 Vetco Gray Inc. Casing tensioning mechanism for a casing hanger
US5247996A (en) 1991-11-15 1993-09-28 Abb Vetco Gray Inc. Self preloading connection for a subsea well assembly
US6598673B1 (en) 1999-10-12 2003-07-29 Abb Vetco Gray Inc. Wellhead load ring
US7150323B2 (en) 2004-07-26 2006-12-19 Vetco Gray Inc. Shoulder ring set on casing hanger trip
US7380607B2 (en) 2004-06-15 2008-06-03 Vetco Gray Inc. Casing hanger with integral load ring
GB2450408A (en) 2007-06-18 2008-12-24 Vetco Gray Inc A casing hanger assembly allowing for the application of tension
US20100116486A1 (en) * 2008-11-12 2010-05-13 Marc Minassian Well assembly having a casing hanger supported by a load member actuated by a retractable member disposed in the wellhead
GB2482969A (en) 2010-08-18 2012-02-22 Vetco Gray Inc Packoff with internal lockdown mechanism
US8171996B2 (en) 2009-04-29 2012-05-08 Vetco Gray Inc. Wellhead system having a tubular hanger securable to wellhead and method of operation
US20130068466A1 (en) 2011-09-16 2013-03-21 Vetco Gray Inc. Latching mechanism with adjustable preload
US8413730B2 (en) 2010-11-30 2013-04-09 Vetco Gray Inc. Wellhead assembly with telescoping casing hanger
US8662185B2 (en) 2010-12-27 2014-03-04 Vetco Gray Inc. Active casing hanger hook mechanism

Patent Citations (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3437356A (en) * 1967-05-01 1969-04-08 Rector Well Equipment Co Inc Casing hanger and seal assembly
US3721292A (en) 1971-08-05 1973-03-20 Vetco Offshore Ind Inc Marine riser liner apparatus and methods of installing such apparatus
US4488740A (en) 1982-02-19 1984-12-18 Smith International, Inc. Breech block hanger support
GB2120300A (en) 1982-05-03 1983-11-30 Dril Quip Inc Wellhead apparatus
US4607865A (en) 1984-10-16 1986-08-26 Vetco Offshore Industries, Inc. Connector, ratcheting type
US5002131A (en) * 1990-01-18 1991-03-26 Vetco Gray Inc. Casing tensioning mechanism for a casing hanger
US5247996A (en) 1991-11-15 1993-09-28 Abb Vetco Gray Inc. Self preloading connection for a subsea well assembly
US6598673B1 (en) 1999-10-12 2003-07-29 Abb Vetco Gray Inc. Wellhead load ring
US7380607B2 (en) 2004-06-15 2008-06-03 Vetco Gray Inc. Casing hanger with integral load ring
US7150323B2 (en) 2004-07-26 2006-12-19 Vetco Gray Inc. Shoulder ring set on casing hanger trip
GB2450408A (en) 2007-06-18 2008-12-24 Vetco Gray Inc A casing hanger assembly allowing for the application of tension
US20100116486A1 (en) * 2008-11-12 2010-05-13 Marc Minassian Well assembly having a casing hanger supported by a load member actuated by a retractable member disposed in the wellhead
US8171996B2 (en) 2009-04-29 2012-05-08 Vetco Gray Inc. Wellhead system having a tubular hanger securable to wellhead and method of operation
GB2482969A (en) 2010-08-18 2012-02-22 Vetco Gray Inc Packoff with internal lockdown mechanism
US8413730B2 (en) 2010-11-30 2013-04-09 Vetco Gray Inc. Wellhead assembly with telescoping casing hanger
US8662185B2 (en) 2010-12-27 2014-03-04 Vetco Gray Inc. Active casing hanger hook mechanism
US20130068466A1 (en) 2011-09-16 2013-03-21 Vetco Gray Inc. Latching mechanism with adjustable preload

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
International Search Report and Written Opinion issued in connection with corresponding PCT Application No. PCT/US2014/062553 on Feb. 27, 2015.

Also Published As

Publication number Publication date
WO2015065960A1 (fr) 2015-05-07
US20150114669A1 (en) 2015-04-30

Similar Documents

Publication Publication Date Title
US7380607B2 (en) Casing hanger with integral load ring
US8061428B2 (en) Non-orientated tubing hanger with full bore tree head
US10605029B2 (en) Shoulder, shoulder tool, and method of shoulder installation
US9624747B2 (en) Tension tubing hanger and method of applying tension to production tubing
US10233712B2 (en) One-trip hanger running tool
US10233710B2 (en) One-trip hanger running tool
AU2012242498B2 (en) Multiple annulus universal monitoring and pressure relief assembly for subsea well completion systems and method of using same
US20140183824A1 (en) Seal with flexible nose for use with a lock-down ring on a hanger in a wellbore
US8631875B2 (en) Insert gas lift injection assembly for retrofitting string for alternative injection location
AU2015231841B2 (en) Wear bushing with hanger lockdown
US9695662B2 (en) Method and system for retaining a lock ring on a casing hanger
US9790747B2 (en) Control line protection system
US10392883B2 (en) Casing hanger lockdown tools
US10301895B2 (en) One-trip hydraulic tool and hanger
US10508505B2 (en) Flow-by holes with gallery and channel arrangement on wellhead and tubular hanger
US20130341051A1 (en) Metal to metal packoff for use in a wellhead assembly
US20140144650A1 (en) Lockdown system for use in a wellhead assembly
US11091982B2 (en) Equalizing device
US10174574B2 (en) Insert for use with wellhead housing having flow-by path
US10260305B2 (en) Completion system with external gate valve
US20170167217A1 (en) Casing hanger retention system
US10669803B2 (en) Wellhead assembly with internal casing hanger pack-off
US20160032675A1 (en) Hanger running tool

Legal Events

Date Code Title Description
AS Assignment

Owner name: VETCO GRAY INC., TEXAS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MANSUKH, MAYUR;GADRE, ANIRUDDHA D.;PALLINI, JOSEPH WILLIAM;AND OTHERS;REEL/FRAME:034020/0873

Effective date: 20140902

STCF Information on status: patent grant

Free format text: PATENTED CASE

MAFP Maintenance fee payment

Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY

Year of fee payment: 4

AS Assignment

Owner name: VETCO GRAY, LLC, TEXAS

Free format text: CHANGE OF NAME;ASSIGNOR:VETCO GRAY INC.;REEL/FRAME:066259/0194

Effective date: 20170516